* Widespread rainfall rates of one to two inches per hour
can be expected from afternoon and evening thunderstorms.

* Excessive rainfall could cause creeks and streams to rise quickly out of their banks and could flood low-lying and
urban areas...particularly those that have had recent significant
rainfall.

A flash flood watch means that conditions may develop that
lead to flash flooding. Flash flooding is a very dangerous situation. You
should monitor later forecasts and be prepared to take action should flash
flood warnings be issued.